In terms of position, Zhang Zizhong was the commander-in-chief of the Thirty-third Group Army, and Zuo Quan was only the chief of staff of the Eighteenth Group Army.
In terms of military ranks, Zhang Zizhong is a lieutenant general plus the rank of general (this is a special form of the Kuomintang military rank, which means that you should be a general in terms of ability, merit, and seniority, but it does not happen that we are now full of generals and have no spare space, so please wait for a while. However, although your official rank is lieutenant general, let's give you an honorary general rank first. After Zhang Zizhong's martyrdom, he was posthumously awarded the official rank of general of the army). The rank of Zuo Quan is only major general. (In the Communist Party, there was only one general, Zhu De, commander-in-chief of the Eighteenth Group Army.) ）
From this point of view, Zhang Zizhong should be higher than Zuo Quan.
But in terms of actual heavyweight, I am afraid that there is a fight.
Zhang Zizhong's last post was commander-in-chief of the Right Wing Corps in the Fifth Theater and commander-in-chief of the Thirty-third Army, which had jurisdiction over five armies of the Thirty-third Army (including the Fifty-ninth, Seventy-seventh, and Fifty-fifth Armies) and the Twenty-ninth Group Army (forty-fifth and sixty-seventh Armies), of which Zhang Zizhong was concurrently the commander-in-chief of the Thirty-third Group Army and the commander of the Fifty-ninth Army.
I would like to say that there were about fifty divisions and about 350,000 men in the entire Fifth Theater at that time. Although Zhang Zizhong was the commander-in-chief of the group army, the actual command number at the time of his death was less than 50,000.
However, in 1940 (the year of General Zhang's death, the Hundred Regiments War seems to have been fought in this year), the number of the Eighteenth Army had exceeded 400,000. At this time, although Zuo Quan was the deputy chief of staff of the Major General of the Eighteenth Group, his actual work was already in charge of the acting chief of staff of the headquarters (at that time, the Eighteenth Group Army was actually under the command of Deputy Commander-in-Chief General Peng Dehuai, and the chief of staff Ye Jianying was not in power, so it was Zuo Quan who assisted Peng Dehuai in commanding the entire Eighteenth Group Army, and was the same as the chief of staff. ）
At this point, although the organization of the Eighteenth Group Army and the Thirty-third Group Army is similar, the Eighteenth Group Army far exceeds the Thirty-third Group Army in terms of the actual number of soldiers, and it seems that the weight of Zuo Quan's chief of staff seems to have surpassed Zhang Zizhong's quite a lot, but (this is very important), the status of the chief of staff before and after the founding of the Country is quite different, to put it bluntly, before the founding of the People's Republic, I can hear the celebrity chief of staff, in addition to Ye Jianying, is Liu Yalou of Lin Luo Liu Li of Siye, in my impression, At that time, only the commander and the political commissar could sign the telegrams sent by the ministry, but Shino had a chief of staff, which seemed to be the first time that the chief of staff had risen to such a high position.
Specifically, until the rank of chief of staff was determined to be the highest post deputy, the status was the same. (For example, the chief of staff of the army at that time was not as high as the division commander.) ）
So compare that between the chief of staff of the 400,000 troops and the commander-in-chief of the 50,000 troops. I think it can still be compared. Anyway, I can't say that it is completely incomparable.